EnergyConsumption Data

(eventually to be added to energyconsumption.org)

The data I have up at http://energyconsumption.org/data.txt is a text file. That makes it hard for other people to add data and see it online in a timely way, though I do try to update it promptly when I get new data.

Data collection Directions

EC's Contribute [your data] page also suggests several ways of measuring a computer's energy use, though it neglects graphics cards which have become much more important in recent years.

We don't have a "meter used" column, but any low wattage measurements taken with an original Watts Up? should be considered suspect. I have a "great" fan with a really misleading power factor which I will use to test my original Watts Up? The KaW and Watts Up? "2.0" are considered accurate for the purposes of this page. Wattages under 2W are probably within the error range. We should re-check the error accuracy data from the KaW instruction sheet.

Data!

(need a schema that can encompass refridgerator / major appliance data)
(may want a "new data" or "contribute data" page separate on thewiki?)

Possible Data Sources

• Tom's Hardware's Intel Power Consumption Then and Now gives some interesting insight into CPU energy consumption.
• U.S. servers slurp more power than Mississippi discusses a Lawrence Berkeley National Laboratory study on the total energy used by servers in the U.S. (45 tWh) and world (123 tWh) ... only 1% of U.S. production (Soren had read 10% for all computers back in 2000 or so; Soren has since seen a presentation of similar conclusions). Storage and switches adds another 30%.
• David B has some detailed washing machine data as well as a bunch of random data converted into Pedal Power units. :)
• lumen/watt lamp data covering sodium hallide, etc from the Navy (looks even better than CFL). {from wikipedia's CFL page}
• http://energystar.gov does have some detailed information about products participating in their program
• Companies often include energy data in their manuals. Nokia puts it up front in their eco declarations.
• Nexus Energy Software's Appliance Calc shows the impressive efficiency gains in various home appliances (e.g. fridges) over the years. Analyze Your Use is a related savings calculator (doesn't give absolute amounts).

Interpreting the data

Similes

Making the case for X, Y, or Z

Big Picture

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